Presser device for sewing-machines.



R. S. KELSO.

PRBSSER DEVICE FOR SEWING MACHINES.

APPLICATION FILED JUNE 30,1911.

Patented Feb. 23, 1915.

WIT/M8858 l/I/VEAITOR his ATTORNEY THE NORRIS PETERS 60.. FHOrc-LITHOWASHINGTON. D. c.

llNlTElU PATENT- @FFTCE.

RALPH S. KELSO, 0F CLEVELAND, OHIO, ASSIGNOR TO THE STANDARD SEWINGMACHINE COMPANY, 013 CLEVELAND, OHIO, A CORPORATION OF OHIO.

DRESSER DEVICE FOR. SEWING-IMACHINES.

Application filed June 30, 1911.

To all whom it may concern Be it known that I, RALPH S. KnLso, citizenof the United States, and resident of Cleveland, in the county ofCuyahoga and State of Ohio, have invented certain new and usefulImprovements in Presser Devices for Sewing-Machines, of which thefollowing is a specification.

This invention relates to a presser-device for sewing machines.

The principal object of the invention is to provide a presser device somounted with respect to the needle, and to the line of stitching formedby the machine, as to be capable of movement for the purpose of enablingit to cooperate properly with the other parts, whatever may be thecharacter of the work in the machine, and yet not interfere with thethreading of the needle or any other operation for the performance ofwhich it is necessary that the operator shall have unobstructed accessto all parts adjacent to the work near the stitching point. In thepresent case this movement of the presser involves two main operationsor functions, one of which relates to movement of the presser for thepurpose of adjusting it with respect to the line of stitching and thepath of the needle, and the other of which relates to movement of thepresser of such a nature as to permit the presser to be shifted from itsoperative position, close to the line of stitching and to the needle, toan inoperative position where it will not obstruct access by theoperator to the needle and other adjacent parts; Considering thismovement of the presser with respect to the first of said functions,viz., its adjustment,

the presser of the present application is preferably so mounted on apresser-bar as to be adjustable both crosswise of the line of stitching,for the purpose of bringing it closer to, or moving it to a pointfarther away from, that line and lengthwise of the line of stitching forthe purpose of permitting it especially when in the form of aroller-presser, which is the type preferably used-to engage the work atany one of the various points between a point considerably in advance ofthe path of movement of the needle and a point considerably in the rearof that path. Considering said presser with respect to the other of saidmain functionsto wit, the movement of it into and out of action-thepresser is preferably mounted to Specification of Letters Patent.

Patented Feb. 23, 1915..

Serial No. 636,139.

swing about an axis located at one side of the presser-bar, andpreferably to the left of and behind said. bar, for the purpose ofenabling the presser itself to swing in a path eccentric to the axes ofboth the needle-bar and the presser-bar, and thus clear all the partsadjacent to the needle when said presser is swung out of action. Theextent and direction of this movement are such as to give the operatorunobstructed access to the needle and adjacent parts whenever thepresser is swung to its inoperative position.

Other features of the invention not hereinbefore referred to will behereinafter de scribed and claimed and are illustrated in theaccompanying drawings, in which- Figure 1 is an elevation of the frontside of a portion of the head of a sewing machine, illustrating thepresent invention applied thereto, with a roller-presser in its workingposition adjacent to the needle, only so much of the sewing machinebeing shown as is necessary to illustrate the invention. Fig.2 is asimilar view showing the presser elevated away from the work and alsoswung to its inoperative position, where it is at a considerabledistance from the needle. Fig. 8 is an elevation of the front end of thesame with the parts in the position shown in Fig. 1, and Fig. 4 is anelevation of the rear side of the same with theparts in the samepositions as shown in Fig. 1.

Similar characters designate like parts in all the figures of thedrawings.

While a presser device embodying my invention is applicable to differentspecific kinds of sewing machines, it is especially well adapted for usein connection with edge-trimming sewing machines of the type disclosedin a companion application Serial No. 636,138, filed June 30, 1911, inwhich there is illustrated and described an edgetrimming sewing machineespecially adapted and intended for trimming off the edge of theundermost of several plies of material that have been or are beingstitched together. For a more detailed description of the mechanism ofsuch an edge-trimming machine reference is hereby made to said companionapplication.

2 designates the lower portion of a sewing machine head, which is or maybe of well-known construction, and in which may work a needle-bar 3 anda presser-bar 4, also of well-known construction. The needle-bar 3carries the usual eye-pointed needle 5 for stitching the work as vit isfed over the throat-plate of the machine. The needle-bar with its needleand the presser-bar with the presser carried thereby are or may becombined with the other parts of the sewing machine and operated in awell-known manner.

The presser-bar carries at its lower end a presser device, preferably ofthe rollerpresser type, which in the construction at present used ismounted and operated in the manner illustrated. It embodies means foradjusting or shifting the operative position of the presser bothcrosswise and lengthwise of the line of stitching, and also means forswinging the presser into and out of its operative position, in additionto means, as usual, for raising and lowering the presserbar and thepresser. In the specific construction illustrated the presser-bar hassecured to its lower end a support 6, on which is mounted a cross-piece7, upon which is pivoted an arm 8, carrying the presserproper, which ishere a roller-presser 9. The cross-piece 7 is adjustably mounted on thesupport 6 for movement in a horizontal path crosswise of the line ofstitching, it having a horizontal slot 10, in this case, for permittingsuch movement; a locking screw being shown at 11 for securing it in thedesired adjusted position crosswise of such line of stitching. The arm 8as illustrated is made in two parts in order to permit adjustment of itslength, and corresponding adjustment of the position of the presseritself, in the other direction hereinbefore referred to, via, lengthwiseof the line of stitching. The adjustable portion of this arm isindicated at 8. A longitudinal slot is shown at 12 in the main part 8 ofthis arm forreceiving the shank of a locking screw 13, by means of whichthe two parts 8 and 8 may be held in the desired adjusted relation toeach other in a manner similar to that just described with respect tothe locking screw 11. By means of these two adjustments thepresser-roller 9, which is shown as pivoted at the lower end of theadjustable part 8 ofthe arm, may be shifted to any one of variouspositions crosswise of the line of stitching and lengthwise thereof,either in front of, or in line with, or behind the needle, and a veryaccurate and fine adjustment of its position with respect to the line ofstitching and the path of movement of the needle may be obtained.

The arm 88, in addition to being adjustable in the manner justdescribed, is illustrated as mounted to swing as a whole about avertical axis which is here located in a hinge member 14. When thepresser is in its operative position, shown in Figs. 1, 3 and 4, it isheld in place between the upper and lower walls of a guideway, such as16, formed at one end of the cross-piece 7 and arranged at right anglesthereto as shown. The guideway formed by these walls serves to hold thearm 8 firmly and prevent any thrust of the mechanism, during theoperation of the machine, from being transmitted to the hinge l4;straining of said hinge and undue displacement of the presser beingthereby prevented. \Vith the arm 8-8 and supported presser-roller 9 inthe positions shown in these views they may be securely locked in placein some suitable manner, as, for example, by means 01 a locking deviceor spring 17 secured to the cross-piece 7, which spring may be releasedfrom engagement with the arm 8 by depressing its free end. The arm islocked in place by merely swinging it to its operative position, thespring yielding to permit it to pass and then locking it in place asshown.

In a device such as just described, the roller-presser 9 may engage thework at a point immediately adjacent to the path of the needle, and theadjustment of such a diagonally mounted roller-presser may be readilyeffected in either or both of two horizontal paths perpendicular to eachother; while at the same time said roller-presser may be thrown out ofaction, when in any of its adjusted positions, by a movement about anaxis in a path eccentric to the axes of both the needle-bar and thepresser-bar. Thus all necessary adjustments for different kinds of workare provided for, and when not in use the presser may be thrown to aposition where it will not be in the way of any other part which theoperator may find it necessary to manipulate or adjust and will notinterfere with any other operation.

What I claim is 1. In a sewing machine, the combination with a presserbar and a needle bar, of a presser, and a horizontal presser-carryingarm normally disposed in the same direction as the line of stitching,said arm being adjustable in length and pivotally carried by the presserbar to turn about a vertical axis to swing said presser from anoperative position adjacent the needle to an inoperative positiondistant from the needle.

2. In a sewing machine, the combination with a presser bar and a needlebar, of a cross piece secured to the presser bar and disposedtransversely of the line of stitching and having a guideway extending inthe direction of the line of stitching, a presser, and a horizontalpresser-carrying arm normally disposed in the same direction as the lineof stitching, said arm being adjustable in length and adapted to fit insaid guideway and pivotally carried by said cross piece to turn about avertical axis to swing said presser from an operative position adjacentthe needle to an inoperative position distant from the needle.

3. In a sewing machine, the combination 1,129,404 jgj;

with a presser bar and a needle bar, of a cross piece secured to thepresser bar and disposed transversely of the line of stitching andhaving a guideway extending in the direction of the line of stitching, apresser, a horizontal presser-carrying arm normally disposed in the samedirection as the line of stitching, said arm being adjustable in lengthand adapted to fit in said guideway and pivotally carried by said crosspiece to turn about a vertical axis to swing said presser from anoperative position adjacent the needle to an inoperative positiondistant from the needle, and means for locking said arm in place in saidguideway with the presser in its operative position.

4. In a sewing machine, the combination with apresser bar and a needlebar, of a cross piece secured to the presser bar and disposedtransversely of the line of stitching and having a guideway extending inthe direction of the line of stitching, a presser, a horizontalpresser-carrying arm normally disposed in the same direction as the lineof stitching, said arm being adjustable in length and adapted to fit insaid guideway and pivotally carried by said cross piece to turn about avertical axis to swing said presser from an operative position adjacentthe needle to an inoperative position distant from the needle, and alocking spring for locking said arm in place in said guideway with thepresser in its operative position.

5. In a sewing machine, the combination with a presser-bar and aneedle-bar, of a cross-piece secured to the presser-bar and disposedtransversely of the line of stitching and having a guideway extending inthe direction of the line of stitching, means to permit said cross-pieceto be adjusted crosswise of the line of stitching, a presser, and an armadjustable in length pivoted to said cross-piece and fitting saidguideway and carrying said presser and mounted to swing said presserfrom an operative position adj acent to said needle to an inoperativeposition distant from said needle.

6. In a sewing machine, the combination with a presser-bar and aneedle-bar, of a cross-piece secured to the presser-bar and disposedtransversely of the line of stitching, means to permit said cross-pieceto be adjusted crosswise of the line of stitching, a presser, and an armadjustable in length pivoted to said cross-piece and carrying saidpresser, mounted to swing said presser from an operative positionadjacent to the needle to an inoperative position distant from saidneedle.

7. In a sewing machine, the combination with a presser-bar and aneedle-bar, of a cross-piece secured to the presser-bar and disposedtransversely of the line of stitching, means to permit said cross-pieceto be adjusted crosswise of the line of stitching, a presser, and an armadjustable in length and longitudinally of the line of stitching pivotedto said cross-piece and carrying said presser and mounted to turn abouta vertical axis to move said presser from an operative position adjacentto the needle to an inoperative position distant from said needle.

8. In a sewing machine, the combination with a presser bar and a needlebar, of a cross piece secured to the presser bar and disposedtransversely of the line of stitching and having a guideway extending inthe direction of the line of stitching, a presser, and a horizontalpresser-carrying arm normally disposed in the same direction as the lineof stitching, said arm being adjustable in length, the adjustableportion thereof being adapted to fit in said guideway and the arm beingpivotallv. carried by said cross piece to turn about a vertical axis toswing said presser from an operative position adjacent the needle to aninoperative position distant from the needle.

Signed at Cleveland, in the county of Guyahoga, and State of Ohio, this17th day of June, A. D. 1911.

RALPH S. KELSO.

Witnesses:

S. E. Foos, F. S. MCELI-IERNE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

